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MANN+HUMMEL FILTER (SHANGHAI) CO. LTD.

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable frequency Helmholtz resonator
    • Patent number 8,839,904
    • Issue date Sep 23, 2014
    • Mann+Hummel Filter (Shanghai) Co. Ltd.
    • Qiang Chen
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    BROADBAND MUFFLER FOR FUEL CELL VEHICLE
    • Publication number 20230339335
    • Publication date Oct 26, 2023
    • MANN+HUMMEL FILTER (SHANGHAI) CO., LTD.
    • Kaizhuan WANG
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Variable Frequency Helmholtz Resonator
    • Publication number 20140060961
    • Publication date Mar 6, 2014
    • MANN+HUMMEL FILTER (SHANGHAI) CO. LTD.
    • Quiang Chen
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Trademarklast 30 trademarks